Since the gun ban in Australia, violent crimes have risen dramatically. In the same period, assaults rose 49%, rapes rose 30%, and robberies rose 6%

This is untrue. Reported violent crimes overall, adjusted for population, fell in this period.

"Assault" in Australian policing reports means two young men full of booze and testosterone taking a swing at one another outside a bar. No one in their right mind would think gun control would have any impact on that. Your implication that in the US young men full of booze and testosterone behave more sensibly because they know there are guns around is beyond stupid. The opposite is true: when booze and testosterone are driving behaviour the difference between murder and assault is the availability of weapons (d'oh).

The assault rate has gone up in Australia because twenty years ago the police would not have been involved in a fight between two young men outside - or even inside - a bar unless someone was seriously hurt.

There is evidence that the rise in the reported rate of rape is a good thing, because it means that women who have been raped have enough confidence in the police and the courts to report it. When only a small fraction of rapes are reported a fall in reported rapes is not necessarily an improvement.